How to Install a Garbage Disposal

Written by: Milan Rosan
DIY Specialist
(800) 375-3403

Garbage disposals reduce waste and simplify cleanup. And installing one is a true DIY project. You'll first need to verify you have an electrical outlet beneath the sink.

Tools / Materials:

- Adjustable Wrench or Crescent Wrench

- Screwdriver

- Plumber’s Putty

- Power Cord (if not included with new disposal)

NOTE: Garbage disposals can vary across brands and models, so this guide is meant as a general guide. Be sure to read the manufacturer installation instructions.

Step by Step Instructions

How to Install a Garbage Disposal: Step 1

Step 1:

Remove the wiring access plate. Feed the wiring through the hole next to the access plate.

How to Install a Garbage Disposal: Step 2

Step 2:

Connect the power cord to the disposal. Connect the wires: white to white, black to black (using wire caps), and secure the green wire to the green screw. Tighten everything down and re-attach the wiring access plate.

How to Install a Garbage Disposal: Step 3

Step 3:

Install the drain spout. It may be necessary to trim the spout to fit your setup.

How to Install a Garbage Disposal: Step 4

Step 4:

If you’re installing your garbage disposal to connect to the dishwasher, remove the spout plug with a hammer and screwdriver. If you’re not connecting the disposal to the dishwasher, skip this step.

How to Install a Garbage Disposal: Step 5

Step 5:

Install the flange. Use a good amount of plumber’s putty and make a rope of it to wrap around the shoulder of the flange. Place the flange into the drain hole.

How to Install a Garbage Disposal: Step 6

Step 6:

Secure the flange beneath the sink. Follow the installation instructions provided by the manufacturer to ensure you place the several parts in the correct order. Make sure to tighten up everything that needs to be.

How to Install a Garbage Disposal: Step 7

Step 7:

Connect the disposal to the flange, using a screwdriver. This step may require a second set of hands.

How to Install a Garbage Disposal: Step 8

Step 8:

Connect the drain spout to the waste line, hook up the air gap hose, then plug the disposal in beneath the sink.

× Shipping Rates & Methods

The cost to ship items varies by item, shipment and shipping option.

Free Ground Shipping on Orders Over $49 *

Standard ground shipping transit time is 5-7 business days.

Free Freight Shipping on Orders Over $1500 *

Curb side delivery (also called freight or "LTL" shipping) is reserved for large, heavy, or oversized items like chandeliers, bathtubs, shower doors, etc. Items are palletized and loaded onto a large truck for shipment, and delivered to your curb by scheduled appointment. Transit time is 7-10 business days.

* For exact shipping costs, add the product(s) to your cart and enter your zip code. All offers pertain to the lower 48 states and do not include deliveries to Alaska, Hawaii or Canada.

Learn more about shipping rates and policies